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  • © 2013

The Mathematics of Coordinated Inference

A Study of Generalized Hat Problems

  • Presents a comprehensive treatment of material previously available in journals only
  • Contains a number of new results and extensions of known results
  • States a number of open and accessible problems
  • Unified notation is used for a cohesive presentation
  • Includes supplementary material: sn.pub/extras

Part of the book series: Developments in Mathematics (DEVM, volume 33)

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Table of contents (9 chapters)

  1. Front Matter

    Pages i-xi
  2. Introduction

    • Christopher S. Hardin, Alan D. Taylor
    Pages 1-9
  3. The Finite Setting

    • Christopher S. Hardin, Alan D. Taylor
    Pages 11-18
  4. The Denumerable Setting: Full Visibility

    • Christopher S. Hardin, Alan D. Taylor
    Pages 19-27
  5. The Denumerable Setting: One-Way Visibility

    • Christopher S. Hardin, Alan D. Taylor
    Pages 29-47
  6. Dual Hat Problems, Ideals, and the Uncountable

    • Christopher S. Hardin, Alan D. Taylor
    Pages 49-59
  7. Galvin’s Setting: Neutral and Anonymous Predictors

    • Christopher S. Hardin, Alan D. Taylor
    Pages 61-69
  8. The Topological Setting

    • Christopher S. Hardin, Alan D. Taylor
    Pages 71-82
  9. Universality of the μ-Predictor

    • Christopher S. Hardin, Alan D. Taylor
    Pages 83-92
  10. Generalizations and Galois-Tukey Connections

    • Christopher S. Hardin, Alan D. Taylor
    Pages 93-101
  11. Back Matter

    Pages 103-109

About this book

Two prisoners are told that they will be brought to a room and seated so that each can see the other. Hats will be placed on their heads; each hat is either red or green. The two prisoners must simultaneously submit a guess of their own hat color, and they both go free if at least one of them guesses correctly. While no communication is allowed once the hats have been placed, they will, however, be allowed to have a strategy session before being brought to the room. Is there a strategy ensuring their release? The answer turns out to be yes, and this is the simplest non-trivial example of a “hat problem.”

This book deals with the question of how successfully one can predict the value of an arbitrary function at one or more points of its domain based on some knowledge of its values at other points. Topics range from hat problems that are accessible to everyone willing to think hard, to some advanced topics in set theory and infinitary combinatorics. For example, there is a method of predicting the value f(a) of a function f mapping the reals to the reals, based only on knowledge of f's values on the open interval (a – 1, a), and for every such function the prediction is incorrect only on a countable set that is nowhere dense.

The monograph progresses from topics requiring fewer prerequisites to those requiring more, with most of the text being accessible to any graduate student in mathematics. The broad range of readership includes researchers, postdocs, and graduate students in the fields of set theory, mathematical logic, and combinatorics. The hope is that this book will bring together mathematicians from different areas to think about set theory via a very broad array of coordinated inference problems.

Reviews

From the book reviews:

“The book presents, in a unified way, attractive topics in graph theory, topology, and set theory that all relate to the dilemma faced by Alice and Bob and others in hat problems. The first few chapters are of great general interest as they summarize hat problems that any mathematician can understand. The later chapters will be of interest to those well versed in set theory or certain aspects of point-set topology.” (Stan Wagon, Mathematical Reviews, October, 2014)

Authors and Affiliations

  • New York, USA

    Christopher S. Hardin

  • Department of Mathematics, Union College, Schenectady, USA

    Alan D. Taylor

Bibliographic Information

Buy it now

Buying options

eBook USD 39.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book USD 54.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book USD 54.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Other ways to access